Improvement in gas-purifiers



UNITED STATES PATENT OFFICE E. C. HERMAN HILDEBRAND, OF CHICAGO, ILLINOIS.

` IMPROVEMENT IN GAS-PURIFIERS.

Specification forming part of Letters Patent No. 155,582, dated October 6, 1874 application liled March 14, 1874.

To all whom it may concern:

Be it known that I, E. C. HERMAN HILDE- BRAND, of Chicago, State of Illinois, have invented an Apparatus for the Purification of l`(clases, of which the following is a specificaiou: v

The object of my invention is to free gases of their impurities by passing them through certain purifying-liquids in such a manner as not only to bring them into the'greatest possible contact with the washing-liquids, but to retard their passage landplengthen the way they have to make, the gas bubbles being in a revolving state.

The apparatus is illustrated in detail by the accompanying drawing.

The apparatus consists of a vessel, c, containing one or more cells, in each of Awhich is placed a number of inclined planes, a, either iiat or corrugated, ascending in a zigzag and having such projections downward `at their edges as to prevent the `escape of gas any other way except through the channel thus formed and the perforatious b. Where two inclined planes meet the lower one is perforated at b, having beyond the perforation a projection downward to prevent the escape of gas in that direction. c, projections. g is the common cover fastened on the flange of vessel e and the partitions f by means of screws or clamps shutting off one compartment completely from the other; la, inlet of the gas; lm, outlet; h, openings to pour in the washingfluids; c', faucets for emptying; l, tubes to convey the gas from one cell to the other, as illustrated by the arrows.

The operation of the apparatus is" as follows: The inclined planes being inserted, the inlet-tubes projecting under the lower end of the lowest inclined plane, the top is securely closed and the apparatus filled to its greater part with the washing-liquids, thus leaving the inclined planes fully immersed under and on all sides surrounded by the washing-liquid. Close h, and let the gas pass in through 7c. As by the diereuce between the specific gravities of the gas and the washing-liquid the gas is pressed against the lower sides of the inclined planes, it follows the inclined plane c upward to c, passes through b, ascends bebelow the other inclined plane, goes there through b, and so on until thel last inclined plane has been passed. liquid and makes its escape through tube l. In case other similarly-constructed cells be attached, the gas is made to enter the next cell at its bottom, and so on successively.

I do not claim, broadly, the invention of` a gas-Washer being composed of several cells, chambers, or compartments containing inclined planes and having a common cover, the compartments communicating by tubes one with the other; but

What I claim as new, and desire to secure by Letters Patent, isl The inclined planes, with one or more open spaces at their upper ends, in combination with a vessel, e, inlet k, and outlet msub stanti-ally as described, and for the purpose set forth.

E. C. HERMAN HILDEBRAND.

Witnesses:

' Louis STEEHL,

G. L. HooDLEss.

The gas leaves the 

